EzFoto 49mm Tilted Vented Metal Lens Hood Shade for Leica, Contax Zeiss, Voigtlander Lens 49mm Tilted Vented Lens Hood shade for Leica, Contax Zeiss, Voigtlander rangerfinder Lens Fit other lens which is with 49mm filter thread Made of metal, leica style lens hood It can prevent unwanted stray light from entering the lens and ensure no problems with vignetting or motor functions. Added benefit of extra protection from accidental impact.